diff mbox series

[v5,11/11] xfs: enable block size larger than page size support

Message ID 20240503095353.3798063-12-mcgrof@kernel.org (mailing list archive)
State New
Headers show
Series enable bs > ps in XFS | expand

Commit Message

Luis Chamberlain May 3, 2024, 9:53 a.m. UTC
From: Pankaj Raghav <p.raghav@samsung.com>

Page cache now has the ability to have a minimum order when allocating
a folio which is a prerequisite to add support for block size > page
size.

Signed-off-by: Pankaj Raghav <p.raghav@samsung.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
---
 fs/xfs/libxfs/xfs_ialloc.c |  5 +++++
 fs/xfs/libxfs/xfs_shared.h |  3 +++
 fs/xfs/xfs_icache.c        |  6 ++++--
 fs/xfs/xfs_mount.c         |  1 -
 fs/xfs/xfs_super.c         | 10 ++--------
 5 files changed, 14 insertions(+), 11 deletions(-)

Comments

Dave Chinner May 7, 2024, 12:05 a.m. UTC | #1
On Fri, May 03, 2024 at 02:53:53AM -0700, Luis Chamberlain wrote:
> From: Pankaj Raghav <p.raghav@samsung.com>
> 
> Page cache now has the ability to have a minimum order when allocating
> a folio which is a prerequisite to add support for block size > page
> size.
> 
> Signed-off-by: Pankaj Raghav <p.raghav@samsung.com>
> Reviewed-by: Darrick J. Wong <djwong@kernel.org>
> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>

.....

> diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
> index bce020374c5e..db3b82c2c381 100644
> --- a/fs/xfs/xfs_super.c
> +++ b/fs/xfs/xfs_super.c
> @@ -1623,16 +1623,10 @@ xfs_fs_fill_super(
>  		goto out_free_sb;
>  	}
>  
> -	/*
> -	 * Until this is fixed only page-sized or smaller data blocks work.
> -	 */
>  	if (mp->m_sb.sb_blocksize > PAGE_SIZE) {
>  		xfs_warn(mp,
> -		"File system with blocksize %d bytes. "
> -		"Only pagesize (%ld) or less will currently work.",
> -				mp->m_sb.sb_blocksize, PAGE_SIZE);
> -		error = -ENOSYS;
> -		goto out_free_sb;
> +"EXPERIMENTAL: Filesystem with Large Block Size (%d bytes) enabled.",
> +			mp->m_sb.sb_blocksize);
>  	}

We really don't want to have to test and support this on V4
filesystems as tehy are deprecated, so can you make this conditional
on being a V5 filesystem?

i.e:
	if (mp->m_sb.sb_blocksize > PAGE_SIZE) {
		if (!xfs_has_crc(mp)) {
			xfs_warn(mp,
"V4 File system with blocksize %d bytes. Only pagesize (%ld) is supported.",
				mp->m_sb.sb_blocksize, PAGE_SIZE);
			error = -ENOSYS;
			goto out_free_sb;
		}

		xfs_warn(mp,
"EXPERIMENTAL: V5 Filesystem with Large Block Size (%d bytes) enabled.",
			mp->m_sb.sb_blocksize);
	}

-Dave.
diff mbox series

Patch

diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c
index e5ac3e5430c4..60005feb0015 100644
--- a/fs/xfs/libxfs/xfs_ialloc.c
+++ b/fs/xfs/libxfs/xfs_ialloc.c
@@ -2975,6 +2975,11 @@  xfs_ialloc_setup_geometry(
 		igeo->ialloc_align = mp->m_dalign;
 	else
 		igeo->ialloc_align = 0;
+
+	if (mp->m_sb.sb_blocksize > PAGE_SIZE)
+		igeo->min_folio_order = mp->m_sb.sb_blocklog - PAGE_SHIFT;
+	else
+		igeo->min_folio_order = 0;
 }
 
 /* Compute the location of the root directory inode that is laid out by mkfs. */
diff --git a/fs/xfs/libxfs/xfs_shared.h b/fs/xfs/libxfs/xfs_shared.h
index dfd61fa8332e..7d3abd182322 100644
--- a/fs/xfs/libxfs/xfs_shared.h
+++ b/fs/xfs/libxfs/xfs_shared.h
@@ -229,6 +229,9 @@  struct xfs_ino_geometry {
 	/* precomputed value for di_flags2 */
 	uint64_t	new_diflags2;
 
+	/* minimum folio order of a page cache allocation */
+	unsigned int	min_folio_order;
+
 };
 
 #endif /* __XFS_SHARED_H__ */
diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index 74f1812b03cb..a2629e00de41 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -89,7 +89,8 @@  xfs_inode_alloc(
 	/* VFS doesn't initialise i_mode or i_state! */
 	VFS_I(ip)->i_mode = 0;
 	VFS_I(ip)->i_state = 0;
-	mapping_set_large_folios(VFS_I(ip)->i_mapping);
+	mapping_set_folio_min_order(VFS_I(ip)->i_mapping,
+				    M_IGEO(mp)->min_folio_order);
 
 	XFS_STATS_INC(mp, vn_active);
 	ASSERT(atomic_read(&ip->i_pincount) == 0);
@@ -324,7 +325,8 @@  xfs_reinit_inode(
 	inode->i_rdev = dev;
 	inode->i_uid = uid;
 	inode->i_gid = gid;
-	mapping_set_large_folios(inode->i_mapping);
+	mapping_set_folio_min_order(inode->i_mapping,
+				    M_IGEO(mp)->min_folio_order);
 	return error;
 }
 
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 56d71282972a..a451302aa258 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -131,7 +131,6 @@  xfs_sb_validate_fsb_count(
 	xfs_sb_t	*sbp,
 	uint64_t	nblocks)
 {
-	ASSERT(PAGE_SHIFT >= sbp->sb_blocklog);
 	ASSERT(sbp->sb_blocklog >= BBSHIFT);
 	uint64_t max_index;
 	uint64_t max_bytes;
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index bce020374c5e..db3b82c2c381 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1623,16 +1623,10 @@  xfs_fs_fill_super(
 		goto out_free_sb;
 	}
 
-	/*
-	 * Until this is fixed only page-sized or smaller data blocks work.
-	 */
 	if (mp->m_sb.sb_blocksize > PAGE_SIZE) {
 		xfs_warn(mp,
-		"File system with blocksize %d bytes. "
-		"Only pagesize (%ld) or less will currently work.",
-				mp->m_sb.sb_blocksize, PAGE_SIZE);
-		error = -ENOSYS;
-		goto out_free_sb;
+"EXPERIMENTAL: Filesystem with Large Block Size (%d bytes) enabled.",
+			mp->m_sb.sb_blocksize);
 	}
 
 	/* Ensure this filesystem fits in the page cache limits */